Sash fastener



July 20 1926. 1,593,530

M. E. GOETZ SASH FASTENER Filed Feb. 25, 1924 Patented July 2Q, 1926.

warren SLASH FASTENER.

Application filed February 25, 1924.

My invention relates to improvements in sash fasteners.

The object of my invention is to provide a sash fastener so arrangedthat it is completely concealed when the sash is closed and which can bereadily applied to any ordinary window frame and sash in use.

Another object of my invention to p vide a sash fastener of thischaracter operated by a specially constructed key which may be carriedin an operative position but can be removed when desired and where, thecutting of the window pane does not allow the opening of the sash as thefastener can not be released.

furt ier object of my invention is to provide a sash fastener in whichthe same can not be released by any ordinary tool, such as nails or thelike and at the same time providing a simple, cheap and effectivefastener having certain details of structure and combination of partshereinaftermore fully set forth.

In the accompanying drawings Figire 1 is a perspective view of the lowerend of a window frame showing the sill and also showing the sashslightly raised with my improved fastener applied thereto.

Figure 2 is a transverse vertical sectional view of Figure 1.

Figure 3 is a transverse sectional View similar to Figure 2 showing thelatch drawn inwardly for releasing the sash.

Referring now to the drawings 1 represents the window frame and 2 thesill. The sill 2 as shown is cut away as indicated at 3 to receive theplate f of the improved latch. This plate t adjacentits ends is providedwith screw threaded openings into which are screwed the two metal screws5 and G. The screws 5 and 6 pass loosely through a plate 7 which isnormally held outwardly against the heads of the screws by means of thescrews 8 and 5) which surround the screws and have their outer endsbearing against the plate 7 and their inner ends bearing against theplate 4-. The plate 7 intermediate the screws 5 and 6 is provided with ascrew threaded opening 10 into which is screwed the oute end of the key11. This key 11 as shown passes through an opening 12 horizontallyarranged in the sill 2 and is arranged opposite the opening 10. By thisstructure it will be seen that the key 11 can be readily Serial No.695,085.

unscrewed from the plate 7 as will be hereinafter more fully describesThe sash 13 has its lower edge cut away or recessed as indicated at1-fl; and screwed in this recess is the plate 15 of a shape tocorrespond with the recess. The inner face of the plate 15 flush withthe inner face of the sash ll} 2. is so arranged that when the sashlowered the upper edge of the sill completely covers the plate 15. Theplate 15 provided intermediate its ends, with the two downwardlyextending keepers 16 and l? which as shown have the beveled walls andstraight horizontal walls 19.

In operation the sash is forced downwardly and the beveled edges of thekeepers l6 and 17 en age the outer flat face of the member 7 and forceit inwardly against the tension of the springs 8 and 9. lVhen the plate7 reaches a position above the straight walls of the keepers and springs8 and 9 force the plate '7 outwardly above the walls, the sash is lockedagainst vertical movement. In order to release the fastener it isnecessary to withdraw the plate '4' inwardly from above the horizontalwalls 19 of the keepers. This is accomplished by pulling the key 11outwardly by means of the head 20.

When it is desired to lock the sash so that it can not be released thekey 11 is turned to the left unscrewing it from the threaded opening 10in the plate 7 and thus it is impossible to draw the plate inwardly bythe insertion of a nail or the like in the opening 12 of the sill 2.This removal of the key 11 makes it almost impossible to release thefastener after the key has been removed.

while I have shown and described this specific construction of afastener it will be understood that the same could be made in manydifferent ways and yet embody my invention. The broad idea is the movinginwardly of the latch so that it cannot be released by pressure by apointed instru ment inserted in the key opening.

Having thus fully described my invention what I claim is:

1. A sash fastener comprising an out wardly spring pressed memberadapted to cooperate with a keeper and movable transversely of themovement of the sash, and a key detachably connected to the springpressed member and extending in the direction of movement of the memberwhereby the fastener is released by drawing the pring pressed memberinwardly.

2. A sash fastener comprising a plate adapted to be fastened to theouter vertical wall of a sill, an outwardly spring pressed membercarried by the plate, a key detachably connected to the spring pressedmember and extending outwardly through the sill and a keeper'recessed'in the lower edge of the sash co-operating with thespringipressed plate and which is released by drawing the spring pressedmember inwardly. I

3. A sash 'i'astener' comprising a plate adapted to be secured to theouter vertical Wall of the sill, two headed studs carried by ther'plate,a member looselymounted on the studs and extending across the spacebetween the same and having a screw threaded opening, a key extendingthrough an opening in the sill, and having a threaded end screwed-intosaid member, a plate secured in a recess in the lower ed e of thesashand having two downwardly extending keepers having beveled lower edgesadapted to enga 'e -the spring pressed memspecification.

MAX IGOETZ.

